<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">
        <span @click="saveState">首页</span>
      </el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="userList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="用户名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="手机号" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <!-- scope.row可以通过作用域插槽获取当前列的数据 -->
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <el-tooltip
              effect="dark"
              content="修改"
              placement="top"
              :enterable="false"
            >
              <!-- 修改按钮 -->
              <el-button
                type="primary"
                size="mini"
                icon="el-icon-edit"
                @click="showEditDialog(scope.row._id)"
              ></el-button>
            </el-tooltip>
            <el-tooltip
              effect="dark"
              content="删除"
              placement="top"
              :enterable="false"
            >
              <!-- 删除按钮 -->
              <el-button
                type="danger"
                size="mini"
                icon="el-icon-delete"
                @click="removeUserById(scope.row._id)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主题区域 -->
      <el-form
        ref="addFormRef"
        :model="addForm"
        label-width="70px"
        :rules="addFormRules"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户信息"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
        
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo"
          >确 定</el-button
        >
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEamil = (rule, value, cb) => {
      const regEamil = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9+-])+/;
      if (regEamil.test(value)) {
        return cb();
      } else {
        cb(new Error("请输入合法的邮箱"));
      }
    };
    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;
      if (regMobile.test(value)) {
        return cb();
      } else {
        cb(new Error("请输入合法的手机号"));
      }
    };
    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 5,
      },
      userList: [],
      total: 0,
      //   控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      //   添加用户的表单数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },
      //   添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "用户名的长度在3~10个字符之间",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "密码的长度在6~15个字符之间",
            trigger: "blur",
          },
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEamil, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      // 控制修改用户的对话框的显示与隐藏
      editDialogVisible: false,
      //查询到的用户信息对象
      editForm: {},
      //修改表单的验证规则对象
      editFormRules:{
          email:[
              {required:true,message:'请输入用户邮箱',trigger:'blur'},
              {validator:checkEamil,trigger:'blur'}
          ],
          mobile:[
              {required:true,message:'请输入用户手机',trigger:'blur'},
              {validator:checkMobile,trigger:'blur'}
          ]
      }
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const res = await this.$http
        .get("/users", { params: this.queryInfo })
        .catch(() => {
          //   this.$message.error("获取用户列表失败");
        });
      console.log(res);
      if (res.status === 200) {
        this.userList = res.data.users;
        this.total = res.data.total;
      }
    },
    // 监听pagesize改变的事件
    handleSizeChange(newSize) {
      console.log(newSize);
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    // 监听页码值改变的事件
    handleCurrentChange(newPage) {
      console.log(newPage);
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    // 监听switch开关状态的改变
    async userStateChanged(userinfo) {
      // console.log(userinfo)
      const res = await this.$http
        .put(`/users/${userinfo._id}/state/${userinfo.mg_state}`)
        .catch(() => {
          userinfo.mg_state = !userinfo.mg_state;
          this.$message.error("更新用户状态失败！");
        });
      console.log(res);
      if (res.status === 200) {
        this.$message.success("更新用户状态成功");
      }
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
      // 获取ref后重置表单
      this.$refs.addFormRef.resetFields();
    },
    // 点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) {
          return;
        } else {
          // 可以发起添加用户的网络请求
          const res = await this.$http.post("/users", this.addForm);
          if (res.status === 200) {
            this.$message.success(res.data.msg);
            // 隐藏对话框
            this.addDialogVisible = false;
            // 重新获取用户列表
            this.getUserList();
          }
        }
      });
    },
    // 展示编辑用户的对话框
    async showEditDialog(id) {
      const res = await this.$http.get(`/users/${id}`);
      console.log(res)
      if (res.status === 200) {
        this.editForm = res.data;
      }
      this.editDialogVisible = true;
    },
    // 监听修改用户对话框的关闭事件
    editDialogClosed(){
        this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提交
    editUserInfo(){
        this.$refs.editFormRef.validate(async valid=>{
            console.log(valid)
            if(!valid){
                return
            }else{
                // 发起修改用户信息的数据请求
                const res = await this.$http.put(`/users/${this.editForm._id}`,{
                    email:this.editForm.email,
                    mobile:this.editForm.mobile
                })
                if(res.status === 200){
                    // 关闭对话框
                    this.editDialogVisible = false
                    // 刷新数据列表
                    this.getUserList()
                    // 提示修改成功
                    this.$message.success('用户信息修改成功！')
                }
            }
        })
    },
    // 根据Id删除对应的用户信息
    removeUserById(id){
        // 弹框询问用户是否删除数据
        this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(async () => {
          await this.$http.delete(`/users/${id}`)
          this.$message({
            type: 'success',
            message: '删除成功!'
          });
          this.getUserList()
        }).catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          });          
        });
    },
    saveState(){
      window.sessionStorage.setItem('activePath','/welcome')
    }
  },
};
</script>

<style lang="less" scoped>
.el-pagination {
  margin-top: 15px;
}
</style>